Events & Promotions
|
|
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
May 2008:00 AM PDT
-08:30 AM PDT
What’s in it for you- Live Profile Evaluation Chat Session with Jenifer Turtschanow, CEO, ARINGO. Come with your details prepared and ARINGO will share insights! Pre-MBA Role/Industry, YOE, Exam Score, C/GPA, ECs Post-MBA Role/ Industry & School List.
Jun 1006:00 AM PDT
-06:15 PM PDT
Register for the GMAT Club Virtual MBA Spotlight Fair – the world’s premier event for serious MBA candidates. This is your chance to hear directly from Admissions Directors at nearly every Top 30 MBA program..
15 May 2018, 01:47
Kudos
Bookmarks
E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
74% (01:57) correct
26%
(01:55)
wrong
based on 286
sessions
History
Date
Time
Result
Not Attempted Yet
If x and y are positive, what is the value of y ?
(1) xy is the square of an integer.
(2) 600 percent of x equals 200 percent of y.
(1) xy is the square of an integer.
(2) 600 percent of x equals 200 percent of y.
15 May 2018, 02:07
Kudos
Bookmarks
Bunuel
Statement 1: implies \(x*y=k^2\), for some integer \(k\). But from this we cannot calculate the value of \(k\). Insufficient
Statement 2: implies \(600\)%\(*x=200\)%\(*y =>y=3x\).
but we don't know the value of \(x\), hence \(y\) cannot be calculated. Insufficient
Combining 1 & 2: we cannot get the value of \(x\), hence the value of \(y\). Insufficient
Option E
15 May 2018, 02:21
Kudos
Bookmarks
Statement 1: -
the statement says \(xy = integer^2\)
If x is 2 and y is 2, then xy = 4
But if x is 28 and y is 7, then xy = 196
Clearly we can have multiple values of y, hence INSUFFICIENT
Statement 2: -
\(600/100*x\) = \(200/100*y\)
\(3x=y\)
clearly, we can have multiple values of y, hence INSUFFICIENT
Combining statement 1 and statement 2
\(3x^2 = integer^2\)
Now if x is 3, then \(3^3 = integer^2\) ---> which is not possible
if x is \(3^2\), then \(3^5 = integer^2\) ---> which is not possible
Therefore x has to be \(\sqrt{3}\) and y is \(3*\sqrt{3}\)
Answer is C. SUFFICIENT
the statement says \(xy = integer^2\)
If x is 2 and y is 2, then xy = 4
But if x is 28 and y is 7, then xy = 196
Clearly we can have multiple values of y, hence INSUFFICIENT
Statement 2: -
\(600/100*x\) = \(200/100*y\)
\(3x=y\)
clearly, we can have multiple values of y, hence INSUFFICIENT
Combining statement 1 and statement 2
\(3x^2 = integer^2\)
Now if x is 3, then \(3^3 = integer^2\) ---> which is not possible
if x is \(3^2\), then \(3^5 = integer^2\) ---> which is not possible
Therefore x has to be \(\sqrt{3}\) and y is \(3*\sqrt{3}\)
Answer is C. SUFFICIENT
